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Using an iPad for a flats light source

Astrophotography
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9 replies to this topic

#1 dstern

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Posted 14 April 2021 - 05:03 PM

Will an iPad white screen work as a flats light source?



#2 Cometeer

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Posted 14 April 2021 - 05:18 PM

Works fine for me. I add a white t-shirt in between as well. 


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#3 Maritime

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Posted 14 April 2021 - 05:33 PM

Where did you find a white screen?


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#4 elmiko

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Posted 14 April 2021 - 05:39 PM

I use mine all the time with my Refractor. Diffuse with a tshirt. 



#5 elmiko

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Posted 14 April 2021 - 05:41 PM

I did a search on  Google play store. Free App.



#6 skywolf856

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Posted 14 April 2021 - 05:42 PM

For my Ipad I downloaded a free app called "Lightbox Trace" to use for flats.


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#7 fmeschia

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Posted 14 April 2021 - 05:51 PM

Works quite well, as long as the aperture of the telescope is smaller than the screen. The app I use for polar alignment, Polar Scope Align Pro, has a feature to display a white (or red) page.


Edited by fmeschia, 14 April 2021 - 05:51 PM.

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#8 Benschop

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Posted 14 April 2021 - 06:41 PM

In agreement with others - I use a white screen, and a white cloth diffuser.

I don't adjust the brightness on the tablet, but adjust exposure duration to reach the desired well depth



#9 AgilityGuy

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Posted 14 April 2021 - 07:16 PM

Works quite well, as long as the aperture of the telescope is smaller than the screen. The app I use for polar alignment, Polar Scope Align Pro, has a feature to display a white (or red) page.

Has worked fine for me too. 


Edited by AgilityGuy, 14 April 2021 - 07:19 PM.


#10 ecuador

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Posted 15 April 2021 - 06:42 AM

Has worked fine for me too. 

Yeah, I added that option to use with my refractor. I don't add a cloth, but just to be sure I rotate the ipad while taking flats. They don't have a large enough iPad for my C9.25 though grin.gif

 

(The screen sizes are diagonals, so the 12.9" has a screen width of 7.75" for the curious)




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